[vector_graphics_compiler] fix a renamed method parameter lint (#8070)

An upcoming fix to `avoid_renaming_method_parameters` will flag this
rename.

(I updated the base class since that seems more correct.)

For references, here's the fix in flight:
https://dart-review.googlesource.com/c/sdk/+/394662


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Author: pq

packages/vector_graphics_compiler/lib/src/svg/resolver.dart

@@ -287,13 +287,14 @@ class ResolvingVisitor extends Visitor<Node, AffineMatrix> {
   }
 
   @override
-  Node visitPatternNode(PatternNode node, AffineMatrix data) {
-    final AttributedNode? resolvedPattern = node.resolver(node.patternId);
+  Node visitPatternNode(PatternNode patternNode, AffineMatrix data) {
+    final AttributedNode? resolvedPattern =
+        patternNode.resolver(patternNode.patternId);
     if (resolvedPattern == null) {
-      return node.child.accept(this, data);
+      return patternNode.child.accept(this, data);
     }
-    final Node child = node.child.accept(this, data);
-    final AffineMatrix childTransform = node.concatTransform(data);
+    final Node child = patternNode.child.accept(this, data);
+    final AffineMatrix childTransform = patternNode.concatTransform(data);
     final Node pattern = resolvedPattern.accept(this, childTransform);
 
     return ResolvedPatternNode(
@@ -304,7 +305,7 @@ class ResolvingVisitor extends Visitor<Node, AffineMatrix> {
       width: resolvedPattern.attributes.width!,
       height: resolvedPattern.attributes.height!,
       transform: data,
-      id: node.patternId,
+      id: patternNode.patternId,
     );
   }
 

packages/vector_graphics_compiler/lib/src/svg/visitor.dart

@@ -45,7 +45,7 @@ abstract class Visitor<S, V> {
   S visitEmptyNode(Node node, V data);
 
   /// Visit a [PatternNode].
-  S visitPatternNode(PatternNode node, V data);
+  S visitPatternNode(PatternNode patternNode, V data);
 
   /// Visit a [ResolvedTextPositionNode].
   S visitResolvedTextPositionNode(